Dry Hopping Flashcards
What is the metric by which a compound’s phase change is measured?
Boiling point
What are the four main aroma compounds (oils)?
Humulene
Caryophyllene
Farnesene
Myrcene
What is humulene?
Primary oil responsible for hoppy nose
What is caryophyllene oil?
Closely related to humulene and other oils found in citrus and marijuana
What is farnesene oil?
Has a grassy, green apple aroma in hops
What is myrcene oil?
Majority of oil found in hops - ranges form floral to metallic
How is hop aroma lost or transformed?
Vaporization
Oxidation
Acid hydrolysis
Yeast biotransformation
What is oxidation?
Molecular pick up of oxygen which forms energy and causes transformation of compounds
What is vaporization?
Transition of an element from liquid to gas
True/False: extraction during dry hoping is temperature dependent
True
What is the required contact time for dry-hopping done at 23c?
4 hours
What is the required contact time for dry-hopping at 1c?
Peaks at 3 days
